• Ranked No. 1 in Japan in 4 categories*! Over 500,000 participants, and a safe, prefecture-certified shop.

  
  

• Exclusive participant benefit page (coupons for restaurants, information on hidden gems).

  
  

• The pumpkin-shaped limestone cave, formed over many years, is truly impressive!

  
  
• During the tour, guides will take photos with a dedicated waterproof camera, and the data will be provided for free!
• Don't worry if you are a beginner at caving! Our guides will provide full support.
• Access to the Pumpkin Hall is by canoe.
• A two-in-one tour where you can enjoy both caving and canoeing (sea kayaking) at once!

－ Course Information －

・Departure Time: Around 9:30 (AM) / Around 13:30 (PM)

・Meeting Point: PiPi Exclusive Pumpkin Parking Lot

*Subject to change in rare cases. You will be notified by the shop if this occurs.

・Duration: Approx. 2 hours

・End Time: 11:30 (AM) / 15:30 (PM)

・End Point: On-site or designated location

・Minimum Participants: 1

－ Spot Introduction －

・'Ryugu-jo' Pumpkin Hall

This is a very rare limestone cave that can only be entered from the sea at
low tide. As you enter the cave, you will see a large, pumpkin-shaped
stalactite that gave the 'Pumpkin Hall' its name. It is a completely natural
formation created over many years as lime components in the strata dissolved.
When you climb up into the Pumpkin Hall, you will find an even wider space
where the limestone cave looks like terraced fields.

【Peace of Mind with PiPi, Miyakojima's Top Choice】

■ Ranked No. 1 in Japan in 4 Categories We are No. 1 in Japan for annual
participants, total number of reviews, annual sales, and number of employees.
With a track record of guiding over 500,000 people and a top-class guide
system, we support you in creating travel memories.

■ Okinawa Prefectural Public Safety Commission Certified Safe Shop We are a
certified 'Safe Marine Leisure Provider (Maruyu)' shop, a status held by only
about 3% of businesses in the prefecture. All guides are certified water
rescue personnel, making it safe for beginners and those with children.

【*Regarding the No. 1 claim】 Market research on activity marine shops as of
July 2026 / Research agency: Japan Marketing Research Organization / Survey
period: June 29 - July 3, 2026 / Survey overview: Targeting 5 major companies
/ Competitor selection criteria: (1) Companies with corporate websites among
the top 1-100 Google search results for 'marine activities' (extracted June
16, 2026) (2) Companies with a consideration rate (including free responses)
of 5% or more in a survey of 100 experienced users / Survey method: Cumulative
data compared and verified based on public information and interviews with
relevant parties. Actual figures may differ. / As of July 2026. This does not
guarantee effectiveness or superiority.